Hi :)
Happy to say I finished the requested animations, with multiple air animations, as well as some other animations like crouching attack, running attack, running and gunning etc. You can see all the new ones here: https://deadrevolver.itch.io/pixel-prototype-player-sprites/devlog/804604/new-an...
Please let me know if it fits your game, or if you need any tweaks. I'm happy to change it.
Hope you like it.